---
title: "List Activity History"
method: GET
path: "/memories/activity/history"
tags: ["Memories"]
---

# List Activity History

`GET /memories/activity/history`

## Request

- Base URL: `https://api.hyperspell.com`
- URL: `https://api.hyperspell.com/memories/activity/history`
- Auth: HTTP bearer

List or search your captured work summaries, newest first.

Company access to the current summary does not grant access to these records.
Search is a literal substring. Use the continuation revision for older results.

## Query parameters

- `resource_id` string, required
- `q` string, nullable
- `before_revision` integer, nullable
- `limit` integer

## Headers

- `X-As-User` string, nullable: Optionally set this header to act as a specific user when using an API Key, equivalent to first exchanging the API Key for a User Token

## Response `200`

Successful Response

- ActivityHistory
  - `resource_id` string, required
  - `checkpoints` CheckpointPreview[], required
    - `checkpoint_id` string, uuid, required
    - `revision` integer, required
    - `title` string, nullable, required: Title preview, at most 500 characters.
    - `captured_at` string, date-time, required
    - `document_date` string, date-time, nullable, required
    - `baseline` boolean, required
    - `content_hash` string, required
    - `preview` string, required
    - `total_characters` integer, required
  - `next_before_revision` integer, nullable, required
  - `history_type` string
  - `visibility` string

## Other responses

- `422`: Validation Error

## Changes

> 43 revisions in range; 2 not diffed.

- **2026-10-21** `8bfe4e0b0ee1`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/hyperspell/apis/hyperspell-api/changes/memories/activity/history/get.md)

---

[API](https://skmtc.dev/hyperspell/apis/hyperspell-api.md) - [All operations](https://skmtc.dev/hyperspell/apis/hyperspell-api/llms.txt) - [OpenAPI document](https://skmtc.dev/hyperspell/apis/hyperspell-api/revisions/9bafd1215a0f?raw)